Waterproof composition.



PATENT OFFICE.

NATALE FORNI, 0F SA NTA ROSA, CALIFORNIA.

WATERPROOF vCOI'JIIOSI'IION.

No Drawing. Application filed November To all whom it may concern:

Be it known that I, NATALE Foam, a citizen of the United States,residing at Santa Rosa, in the county of Sonoma and State of California,have invented an Improved WVaterproof Composition, which is hereinafterdescribed.

The primary object of the invention is to produce a Water-proof mixtureof about the consistency of milk which is adapted and intended to bemixed with cement and sharp clean sand in proper proportions and willform a product absolutely impervious to Water.

In oarryin out the invention and producing the mixture, I mix burntstone lime and crude linseed oil in the proportions of one hundredpounds of the former to seventy pounds of the latter, and sufficientwater to slake the lime together with Specification of Letters Patent.

Patented Oct. '7, 1913.

18, 1911. Serial No. 661,146.

twenty-five pounds of sulfur. The oil is added to the lime very slowlyand carevfully during the slaking of the lime, so as not to interruptthis chemical. operation. The mixture thus produced is kept in suitablereceptacles ready for use by mixingit with cement and sharp sand, bywhich means an entirely waterproof product is formed.

hat I claiin is The improved waterproo composition, consisting of burntlime one hundred parts, crude linseed oil seventy parts, and Water indue proportion to effect the slaking of the lime together with sulfurtwenty-five parts, as described.

Pln'rno' SPINELLI, Mourns LEVY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

' Washington, D. 6.

